Granted Patent
Utility
US 6,243,647 · App. 09/239,334
Three dimensional display for time multiplexed global positioning system cell location beacon system
Inventors:
Viktors Berstis, Joel Leslie Smith
Patented Case
View Patent ↗
Granted: Jun 5, 2001
Filed: Jan 28, 1999
Inventors
Viktors Berstis
Joel Leslie Smith
Assignee (at issue)
International Business Machines Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.